Cable Tray Hardware Bill of Materials

Method & Assumptions

The hardware BOM is generated by analyzing tray geometry from the Raceway Schedule. Trays must have valid start and end coordinates (X, Y, Z) for the analysis to work.

Fittings are detected at endpoints where two or more trays meet:

  • Splice Plate — two collinear trays (≤10° bend), same width
  • Reducer — two collinear trays with different widths
  • Elbow — two trays with bend angle >10°
  • Tee — three trays meeting at a junction
  • Cross — four trays meeting at a junction

Support brackets are counted per NEMA VE 2 spacing rules. Maximum span is determined from the selected NEMA load class and cable weight per foot. Minimum 2 brackets per segment (one at each end).

Straight sections are counted using the standard section length (default 12 ft). Cover sections are optionally included for the same quantity.

References: NEMA VE 1-2017 §4 (Load Classification), NEMA VE 2 (Installation).

See also: Support Span Calculator, Raceway Schedule, Seismic Bracing.

BOM Parameters

Per NEMA VE 1-2017 §4. Determines maximum allowable support span. Use the Support Span Calculator to verify.

Average cable weight per linear foot across all trays. Set to 0 to use the NEMA rated load (most conservative). Use the Support Span Calculator for per-tray values.

Length of straight tray sections. Typical: 10 ft or 12 ft.

Check to include tray cover sections (same count as straight sections). Covers are typically used on solid-bottom and ventilated trays.

Manufacturer Product Catalog

Browse and select manufacturer part numbers to attach to BOM line items. Selected products update list prices and part numbers in the exported BOM.